Order of operations

[Urs Liska]

Hi all,

how can I hook into the last stage of processing of a LilyPond score?

David Nalesnik provided me with a function through overriding 
NonMusicalPaperColumn.after-line-breaking with a custom function. For 
each line break this can write some information to a file.
However, I would like to write some finishing information after the last 
item has been processed, and I don't see how I can achieve that.

I tried out my new knowledge and wrote an engraver, but it turns out 
that its 'finalize' procedure is executed before the 
.after-line-breaking is processed.

So is there anything I can hook into that is just before the end of the 
processing sequence?

TIA
Urs